Instrukcja obsługi Valcom V-9984

Valcom Konsola miksująca V-9984

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Issue 2

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V-9983 2 CHANNEL MODULAR PRE-AMP/MIXER

V-9984 REMOTE INPUT MODULE

V-9985 4 CHANNEL MODULAR PRE-AMP/MIXER

INTRODUCTION

These instructions contain the speciﬁcations and

guidelines necessary to install, operate, and

maintain the Modular Pre-Amp/Mixer. The unit

provides connections for up to 4 remote input

modules. The mixer consists of a V-9983 Main

Control Module and a V-9984 Remote Input

Module.

The Modular Pre-Amp Mixer is used with

Valcom distributed ampliﬁed one way paging

systems providing additional audio source

inputs.

The V-9985 provides active mixing for 1

balanced microphone and 2 auxiliary inputs.

Also supplied is an additional audio input

(building page) with an override feature. Up to 3

additional Remote Input Modules (V-9984) may

be connected to the Main Control Module. Each

Remote Input Module adds 1 Balanced

Microphone and 1 Auxiliary input.

Applications

Valcom, Inc. Distributed Ampliﬁed One-Way

Paging Systems. Refer to Figure 1 for a

block diagram of a typical installation.

Features

Main Control Module V-9983

High impedance auxiliary input

Volume control for auxiliary input

3.5mm stereo mini jack for auxiliary input

Master volume control

Up to (4) four remote mixer modules may be

connected

Separate outputs for Horns and Speake rs

Page port connection (Building Page) with

override option switch

Remote Volume Control Connection

LED Signal Meter

Built in Compressor, option dip switch –

controlled

Power "ON" indicator

Mounts in 3 gang electrical box

MAIN CONTROL MODULE WITH

REMOTE INPUT MODULE

Remote Input Module V-9984

Balanced microphone

XLR Mic. Connection

Phantom power for electret microphones

(Switch controlled)

Phantom power “ON” indicator

High impedance auxiliary input

Volume control for auxiliary input

3.5mm stereo mini jack for auxiliary input

Power "ON" indicator

Mounts in single gang electrical box

Connects to Main Control Module with 2 pair

24AWG station cable

Screw terminals for distribution connections

Dimensions

Main Control Module

5"W x 4.25"H x 2”D

(12.7cm W x 10.8cm D x 5.08cm H)

4 lbs. (1.5Kg)

Remote Input Module

1.64W x 4.25"H x 2”D

(4.17cm W x 10.8cm D x 5.08cm H)

lbs. (0.1Kg).25

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Speciﬁcations

Outputs

Main Output: - dBm nominal, 100 Ohms 10

Frequency Response: 2Hz to 20kHz ± 1dB

Horn Output: - dBm nominal, 100 Ohms 10

Frequency Response 20Hz to 20kHz ± 1dB

(12 dB/Octave High pass at 300Hz)

Tone Controls

Bass (50 Hz) boost or cut up to 12 dB

Treble (10 kHz) boost or cut up to 12 dB

Signal to Noise

-80 dB from maximum output

Auxiliary Input Sensitivity

10mV RMS for -10 dBm output

Input Impedance: >40 kΩ

Bldg Page Input Sensitivity

30mV RMS for -10 dBm output

Input Impedance: >4 kΩ (balanced input)

Signal Meter

-10 dBm output lights ﬁrst 5 LED's

3 dB per LED segment

Compression Ratio: 2.5 ﬁxed

Attack: 1.5 Ms

Release: 0.3 seconds

Remote Volume Control

10 kΩ linear taper (gives audio taper)

One pair connection

Power Requirements

Voltage: 24VDC

Current: 50mA

Remote Module

Connections: 1 pair audio, 1 pair 24VDC

(From main control module)

Input Impedance: >4 kΩ (balanced)

Maximum Input: 1Vrms

Microphone Input

40uVRMS (-10 dBm out) Input Sensitivity:

Max Input: 30mVRMS

Input Impedance: 3.5 kΩ Balanced

Signal to Noise

-65 dB from max output

Phantom Power

24VDC with 2.2 kΩ

Auxiliary Input

Sensitivity

10mVRMS for -10 dBm output

Max Input: 1.4VRMS

Input Impedance: > 40 kΩ

Environment

Temperature 0 to 50°C

Humidity 0 to 85% non-precipitating

INSTALLATION

Figure 1 shows volume control locations,

microphone and auxiliary input connections.

Figure 2 shows output terminal strips and

switches on the back of the mixer. Figure 3

shows a typical connecting arrangement. The

V-9985 contains a Main Mixer Module and 1

Remote Module. Three additional remote

modules may be connected to the main mixer

module. Figure 4 shows other feature

connections. Figure 5 shows Remote Input

Module, Speaker and Power Connections.

All connections should be made to the mixer and

double-checked prior to connecting DC power.

Connect the microphone to balanced XLR cables

and the microphone XLR connector on the

Remote Input Module. If the microphone is a

condenser type it will require Phantom Power.

Turn “ON” the Phantom Power Switch located on

the Remote Module using a small scribe or paper

clip. The Phantom Power LED will illuminate.

The microphone volume control is located on the

remote module. Other sources such as CD and

MP3 players, tuners, and computer sound cards

may be connected to the auxiliary inputs located

on the remote and main modules. Volume

controls for the auxiliary inputs are located on the

remote input and main control module.

An additional audio input is available with a

volume control located on the PC board for

connection to a low level audio source such as a

telephone page port o Valcom One-Way Page r

Control. An option dip switch located on the PC

board enables the input to override the

microphone and auxiliary inputs.

A compressor is available to even out a user’s

voice to compensate for poor microphone or

vocal technique and allow more microphone gain

before feedback. All auxiliary and microphone

inputs are routed through the compressor when

enabled. An option dip switch located on the PC

board enables the compressor.

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A connection is provided to a remote volume add

control. This is a 2 wire connection using a 10K

Ohm linear potentiometer.

Speaker Connections

Connect Tip and Ring of Valcom Amplifed

Speakers to the output screw terminals located

on the Main Mixer Module. Connect Tip and Ring

of Valcom Ampliﬁed Paging Horns to horn audio

output screw terminals.

When setting the system up, it is recommended

that the master gain control be set 2/3 and aux

volume controls be set to 1/4.

OPERATION

The V-9985, Four Channel Pre-Amp/Mixer

actively mixes any signals present on the inputs.

Each input is equipped with its own volume

control to allow blending of the input sources.

The unit also has a master volume control to

allow a volume level adjustment of all mixed

signals. Bass and treble controls allow up to

12dB of boost or cut at 50Hz and 10kHz.

An audio input is available on the main control

module allowing connection of a low level signal

that will override all other inputs. An option dip

switch controls the override feature.

The integrated compressor feature is controlled

by an option dip switch. Microphone and

auxiliary inputs are routed through the

compressor when the compressor is active.

Two outputs are provided by the V-9985 modular

mixer.

An output to drive full range speakers

An output to drive limited range paging horns

TECHNICAL ASSISTANCE

When trouble is reported, verify there are no

broken connections. Assistance in

troubleshooting is available from the factory.

Call (540) 563-2000 and press 1 for

Technical S ort, or visit our website at upp

http://www.valcom.com.

Valcom equipment is not ﬁeld repairable.

Valcom, Inc. maintains service facilities in

Roanoke, VA. Should repairs be necessary,

attach a tag to the unit clearly stating company

name, address, phone number, contact person

and nature of the problem. Send the unit to:

Valcom, Inc.

Repair & Return Dept.

5614 Hollins Road

Roanoke, VA 24019-5056

VALCOM LIMITED WARRANTY

Valcom, Inc. warrants its products to be free from defects in materials and workmanship under conditions of normal use and service for a period of one year from

the date of shipment. The obligation under this warranty shall be limited to the replacement, repair or refund of any such defective device within the warranty

period, provided that:

1. inspection by Valcom, Inc. indicates the validity of the claim;

2. the defect is not the result of damage, misuse or negligence after the original shipment;

3. the product has not been altered in any way or repaired by others and that factory sealed units are unopened (a service charge plus

parts and labor will be applied to units defaced or physically damaged);

4. freight charges for the return of products to Valcom are prepaid;

5. all units 'out of warranty' are subject to a service charge. The service charge will cover minor repairs (major repairs will be subject to

additional charges for parts and labor).

This warranty is in lieu of and excludes all other warranties, expressed or implied and in no event shall Valcom, Inc. be liable for any anticipated

proﬁts, consequential damages, loss of time or other losses incurred by the buyer in connection with the purchase, operation or use of the product.

This warranty speciﬁcally excludes damage incurred in shipment. In the event a product is received in damaged condition, the carrier should be notiﬁed

immediately. Claims for such damage should be ﬁled with the carrier involved in accordance with the F.O.B. point.

Headquarters:

Valcom, Inc.

5614 Hollins Road

Roanoke, VA 24019-5056

Phone: (540) 563-2000

FAX: (540) 362-9800